Dayco 88003 Engine Coolant Reservoir Hose - Heater To Tee or Lower

Dayco 88003 Small I.D. Heater Hose

Dayco 88003 is a Small I.D. Heater Hose for coolant routing in select Buick Encore and Chevrolet Trax applications. It is listed for lower hose and heater-to-tee positions, giving buyers a direct-reference option for specific cooling system service needs.

Key Features

• Brand: Dayco Small I.D. Heater Hose
• Part number: 88003
• Engine coolant reservoir hose / heater hose application
• Fits lower and heater-to-tee positions, depending on vehicle
• Compatible with select Buick Encore and Chevrolet Trax models

Fitment Details

• Fits 2013-2021 Buick Encore, Lower — Small I.D. Heater Hose
• Fits 2015-2021 Chevrolet Trax, Lower — Small I.D. Heater Hose
• Fits 2014 Chevrolet Trax, Heater To Tee — Small I.D. Heater Hose

Product Description

Dayco 88003 is built for coolant transfer in small inside diameter heater hose applications. This part number is listed for Buick Encore lower hose service from 2013-2021 and Chevrolet Trax lower hose service from 2015-2021, plus a 2014 Chevrolet Trax heater-to-tee location. If you are replacing a worn or leaking hose on a Buick Encore or Chevrolet Trax, 88003 provides a fitment-specific replacement reference for the cooling system.

What It Is Used For

• Replacing a cracked or softened heater hose
• Addressing coolant seepage at hose connections
• Restoring coolant flow in the heater circuit
• Servicing a damaged lower hose section
• Replacing a hose at the heater-to-tee connection on a 2014 Chevrolet Trax

Installation Notes

Verify the hose routing, position, and inside diameter before installation. Match the vehicle year, make, model, and location exactly to the fitment listed for Dayco 88003. Inspect adjoining clamps, tees, and coolant passages for wear or contamination before reassembly.

Quality Assurance

Dayco is a recognized name in cooling-system and power transmission components, and the 88003 part number is cataloged for specific OE-style service applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.